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    Extended view ultrasound imaging system
    1.
    发明授权
    Extended view ultrasound imaging system 有权
    扩展视图超声成像系统

    公开(公告)号：US06540681B1

    公开(公告)日：2003-04-01

    申请号：US09721645

    申请日：2000-11-24

    Applicant: Xiangyong Cheng ,  Shengtz Lin

    Inventor： Xiangyong Cheng ,  Shengtz Lin

    IPC: A61B800

    CPC classification number: A61B8/4254 ,  A61B8/0866 ,  A61B8/4245 ,  G01S5/18 ,  G01S7/52065

    Abstract: An extended view ultrasound imaging system in which a position sensor is used to detect the location and orientation of a ultrasound transducer for each scan frame as the ultrasound transducer is swept across the surface of a target. The contents of the successive scan frames, together with their location and orientation information, are processed to generate an extended view ultrasound image of the target region. An output array representing the extended view image is first initialized, and then successively updated as each scan frame is received. In a preferred embodiment, an alpha-blending algorithm is used to combine the information in the current scan frame with previous output array values to generate the current output array values. Because the content of the successive image frames is not relied upon to piece them together, system processing requirements are substantially reduced and the output image is robust against increased transducer speed, bumps in the transducer path, and departures of the transducer from a common plane. In an additional preferred embodiment, the alpha-blending weighting factor can be user-adjustable and/or can be dynamically adjusted on a per-location basis based on acoustic reflectivity, edge motion, or other factors. Also in an additional preferred embodiment, the amount of departure from a common plane during the movement of the transducer across the target can be displayed to the user for assistance in interpreting the extended view image.

    Abstract translation: 一种扩展视图超声成像系统，其中当超声换能器扫过目标表面时，其中使用位置传感器来检测每个扫描帧的超声换能器的位置和方向。 连续扫描帧的内容及其位置和方向信息被处理以产生目标区域的扩展视图超声图像。 首先初始化表示扩展视图图像的输出阵列，然后在接收每个扫描帧时连续更新。 在优选实施例中，使用α混合算法将当前扫描帧中的信息与先前的输出阵列值组合以生成当前输出阵列值。 由于连续图像帧的内容不依赖于将它们放在一起，所以系统处理要求大大降低，并且输出图像对于提高的换能器速度，换能器路径中的凸块以及换能器从共同平面的偏离而是稳健的。 在另外的优选实施例中，阿尔法混合加权因子可以是用户可调节的和/或可以基于声反射率，边缘运动或其他因素在每个位置的基础上动态地调整。 同样在另外的优选实施例中，可以向用户显示在换能器移动过程中从公共平面偏离目标的量，以帮助解释扩展视图图像。

    Method and system for instant biopsy specimen analysis
    3.
    发明授权
    Method and system for instant biopsy specimen analysis 失效
    即时活检标本分析方法和系统

    公开(公告)号：US07018333B2

    公开(公告)日：2006-03-28

    申请号：US10466568

    申请日：2001-11-20

    Applicant: Shih-Ping Wang ,  Tommy Earl Cupples ,  Xiangyong Cheng

    Inventor： Shih-Ping Wang ,  Tommy Earl Cupples ,  Xiangyong Cheng

    IPC: A61B8/00

    CPC classification number: G01S15/8993 ,  A61B8/0833 ,  A61B10/0096 ,  A61B2090/378 ,  G01N29/0609 ,  G01N29/223 ,  G01N29/28 ,  G01N2291/02466 ,  G01S7/52017

    Abstract: An apparatus and related methods for ultrasound-assisted surgical removal of a tumor or other biological object from a patient, the tumor requiring complete removal such that no portion thereof remains inside the patient, is described. According to a preferred embodiment, a specimen containing the tumor is extracted from the patient and suspended in a container holding an acoustically conductive fluid. An ultrasound probe is brought into acoustic communication with the fluid and scans the specimen, preferably at an acoustic power setting higher than a maximum ultrasonic power permitted on live human tissue. Resulting two-dimensional and/or three-dimensional ultrasound images of the specimen, which have a higher quality due to the increased acoustic power of the scan, are viewed on an output display for examining whether any portion of the tumor comes into contact with a surface of the specimen. Preferably, the ultrasound images are segmented and processed by the ultrasound system in a manner that further assists in the determination of whether the specimen contains the entire tumor.

    Abstract translation: 描述了用于从患者超声辅助手术切除肿瘤或其他生物体的装置和相关方法，所述肿瘤需要完全去除，使得其中没有部分残留在患者体内。 根据优选实施方案，从患者中提取含有肿瘤的样本，并将其悬浮在容纳声导电液体的容器中。 将超声波探头与流体进行声学连通，并扫描样本，优选地在高于活体组织允许的最大超声功率的声功率设定。 在输出显示器上观察由于扫描增加的声功率而具有较高质量的样本的所得到的二维和/或三维超声图像，用于检查肿瘤的任何部分是否与 试样表面。 优选地，超声图像被分段和超声系统处理，以进一步有助于确定样本是否包含整个肿瘤的方式。

    Methods and apparatus for tumor diagnosis
    5.
    发明授权
    Methods and apparatus for tumor diagnosis 失效
    肿瘤诊断方法和装置

    公开(公告)号：US06309353B1

    公开(公告)日：2001-10-30

    申请号：US09246727

    申请日：1999-02-09

    Applicant: Xiangyong Cheng ,  Iwaki Akiyama ,  Kouichi Itoh

    Inventor： Xiangyong Cheng ,  Iwaki Akiyama ,  Kouichi Itoh

    IPC: A61B801

    CPC classification number: A61B8/14 ,  A61B8/4254

    Abstract: Method and apparatus for extraction of breast tumors from three-dimensional ultrasonic images obtained by interpolation of a series of cross sectional images. The method consists of two stages are disclosed. In the first stage a membership function is automatically generated by using an output of three dimensional LoG(Laplace of Gaussian) filtering for the voxel data. In the second stage, the membership function is used for a fuzzy logic based calculation to produce three grades of the voxel attributable to three classes of “tumor”, “normal tissue” and “boundary”. We then classify each voxel as one of the three classes by relaxation techniques. Also, a parameter for evaluation of the uneven complexity of the surface roughness using a ratio of the surface area over the volume is defined.

    Abstract translation: 从通过一系列横截面图像的插值获得的三维超声图像中提取乳腺肿瘤的方法和装置。 该方法由两个阶段组成。 在第一阶段，通过使用体素数据的三维LoG（拉普拉斯高斯）滤波的输出来自动生成隶属函数。 在第二阶段，隶属函数用于基于模糊逻辑的计算，以产生归因于三类“肿瘤”，“正常组织”和“边界”的体素的三个等级。 然后，我们通过放松技术将每个体素分类为三个类之一。 此外，定义了使用表面积相对于体积的比率来评估表面粗糙度的不均匀复杂度的参数。

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